CN113414349A - Sand mold production structure and casting production process applying same - Google Patents

Abstract

The utility model relates to a sand mold production structure and a casting production process applying the structure, which relate to the technical field of casting production and comprise a frame, wherein a turnover device is arranged on the frame, and the turnover device comprises a turnover mechanism; the first rotating plate is rotatably arranged on the rack through a rotating shaft; the first clamping mechanism is arranged on the first rotating plate and used for clamping the lower die frame; and the pushing mechanism is arranged on the rack and is connected with the rotating shaft. The lower die frame is clamped through the first clamping mechanism, and the pushing mechanism is started to drive the first rotating plate to overturn the lower die frame; first clamping mechanism loosens the centre gripping to lower framed, and on the frame was placed to lower framed, send sand device to start and add the molding sand to last framed after that to this makes the lower mould, consequently need not the manual work and overturn lower framed, has shortened the time of sand mould production, has improved the efficiency in the sand mould production process.

Description

Sand mold production structure and casting production process applying same

Technical Field

The application relates to the technical field of casting production, in particular to a sand mold production structure and a casting production process applying the structure.

Background

The casting is a metal molding obtained by various casting methods, namely, smelted liquid metal is poured into a sand mold prepared in advance by pouring, injection or other casting methods, and after cooling, the casting is subjected to subsequent processing means such as grinding and the like to obtain the casting with certain shape, size and performance, so that the sand mold is produced at first for manufacturing the casting.

Referring to fig. 1, in the related art, a sand mold generally includes an upper mold and a lower mold, a lower mold 16 is first placed in a lower mold frame 13, molding sand is placed in the lower mold frame 13 to form the lower mold, the lower mold is turned, an upper mold 17 is then mounted on the lower mold 16, and the upper mold 17 and the lower mold 16 form a space for casting; then, the upper mold frame 14 is mounted on the lower mold frame 13, and then molding sand is put into the upper mold frame 14 to make an upper mold, thereby completing the entire set of sand molds.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the lower die frame turnover process needs manual work to turn over, and the lower die frame is filled with the molding sand and then the weight is heavier, so that the worker is more difficult in the process of turning over the lower die frame, the time spent in the process of turning over the lower die frame is longer, the time for producing the sand die is prolonged, and the efficiency in the production process of the sand die is reduced.

Disclosure of Invention

In order to improve the efficiency in the sand mould production process, the application provides a sand mould production structure and a casting production process applying the structure.

First aspect, the application provides a sand mould production structure adopts following technical scheme:

a sand mold production structure comprises a rack and a sand conveying device which is arranged on the rack and used for conveying molding sand, wherein an upper mold frame and a lower mold frame are placed on the rack;

the first rotating plate is rotatably arranged on the rack through a rotating shaft;

the first clamping mechanism is arranged on the first rotating plate and is used for clamping the lower die frame;

and the pushing mechanism is arranged on the rack and is connected with the rotating shaft.

By adopting the technical scheme, the lower die frame is placed on the rack, the lower die core is placed on the rack, and the sand feeding device is started to add the molding sand into the lower die frame, so that the lower die is manufactured; the first clamping mechanism clamps the lower mold frame, the pushing mechanism is started to drive the rotating shaft to rotate, and the rotating shaft rotates to drive the first rotating plate to overturn the lower mold frame;

the first clamping mechanism loosens the clamping of the lower mold frame, the lower mold frame is placed on the rack, the upper mold core is installed on the lower mold core, the upper mold frame is installed on the upper surface of the lower mold frame, the sand conveying device is started to add molding sand into the upper mold frame, and the lower mold is manufactured according to the method, so that the whole set of sand mold is manufactured, the lower mold frame does not need to be turned over manually, the production time of the sand mold is shortened, and the efficiency in the production process of the sand mold is improved; the upper die and the lower die are manufactured simultaneously, so that the time spent on sand die production is further shortened, and the efficiency in the sand die production process is improved.

Optionally, two first clamping mechanisms are arranged and located on two sides of the lower mold frame, and each first clamping mechanism comprises;

the first oil cylinder is arranged on the first rotating plate;

the first clamping plate is arranged on a first oil cylinder piston rod and clamps a lower die frame, and an inserting groove is formed in the lower die frame;

and the clamping block is arranged on the first clamping plate and is in inserted fit with the insertion groove.

Through adopting above-mentioned technical scheme, first die clamping cylinder starts to drive first clamp plate and is close to lower framed, and the both sides wall of framed is pressed from both sides down to two first clamp plates, and the plug block is pegged graft simultaneously and is installed on the inserting groove to this realizes pressing from both sides tight framed down, consequently the plug block with inserting groove grafting cooperation, improved the location effect to framed down.

Optionally, a conveying device for conveying the upper mold frame and the lower mold frame is arranged on the rack, and the conveying device comprises;

the second rotating plate is rotatably arranged on the rack through a rotating rod, and the rotating rod is connected with the pushing mechanism;

the supporting disc is rotatably arranged on the second rotating plate through a rotating shaft and is kept stable under the action of gravity;

the second clamping mechanism is arranged on the supporting plate and is used for clamping the upper die frame and the lower die frame;

and the collecting assembly is arranged on the rack and positioned on one side of the second rotating plate, which is far away from the first rotating plate, and is used for placing the upper die frame and the lower die frame.

After the whole set of sand mold is manufactured, the upper mold frame and the lower mold frame need to be transported away to be kept stand for a period of time to wait for the sand mold to be formed, and the upper mold frame and the lower mold frame are heavier in weight, so that hoisting equipment is generally used for hoisting and transporting, more time is spent on transporting the upper mold frame and the lower mold frame by using the hoisting equipment, and the production efficiency of the sand mold is reduced;

by adopting the technical scheme, the second clamping mechanism starts to clamp the upper die frame and the lower die frame, the pushing mechanism drives the second rotating plate to rotate, the second rotating plate drives the upper die frame and the lower die frame to move onto the collecting assembly, and the second clamping mechanism loosens the clamping of the upper die frame and the lower die frame; therefore, the pushing mechanism simultaneously drives the first rotating plate and the second rotating plate to rotate, and when the first rotating plate drives the lower die frame to turn, the second rotating plate drives the upper die frame and the lower die frame to move to the collecting assembly;

the upper die frame and the lower die frame fall onto the collecting assembly to be kept stand for waiting for the molding of the sand die, so that the hoisting equipment does not need to be manually used for transportation, and the production efficiency of the sand die is improved; and it is heavier to go up framed and lower framed weight, consequently, the torsion that each part received is also great, thereby lead to each part of turning device to damage easily, the energy of consuming is also great during the upset simultaneously, consequently, do not overturn when transporting last framed and lower framed, thereby the life-span of each part on the turning device has been improved, stability when transporting last framed and lower framed has been improved, and pushing mechanism drives first rotor plate and second rotor plate simultaneously and rotates, consequently, the consumption of energy has all been reduced, the cost of production has been saved.

Optionally, the pushing mechanism comprises;

the two gears are respectively arranged on the rotating shaft and the rotating rod;

the pushing oil cylinder is arranged on the rack;

and the rack is arranged on the rack in a sliding manner, is connected with the piston rod of the pushing oil cylinder and is meshed with the two gears.

Through adopting above-mentioned technical scheme, promote the hydro-cylinder and start and drive the rack and remove, the rack removes and drives gear rotation, and gear rotation drives pivot and bull stick and rotates simultaneously to this realizes promoting the hydro-cylinder and starts to drive first rotor plate and second rotor plate and rotate simultaneously.

Optionally, the collection assembly comprises;

the supporting rolls are rotatably arranged on the rack, a plurality of supporting rolls are obliquely arranged at intervals and used for supporting the upper die frame and the lower die frame, and the height of the supporting roll close to one side of the second rotating plate is higher than that of the supporting roll far away from one side of the second rotating plate;

the supporting motor is arranged on the rack and is connected with the supporting roller close to one side of the second rotating plate;

and the limiting plate is arranged on the rack and is used for positioning the upper die frame and the lower die frame.

By adopting the technical scheme, the upper die frame and the lower die frame move above the supporting roller, the second clamping mechanism loosens the clamping of the upper die frame and the lower die frame, the upper die frame and the lower die frame are placed on the supporting roller, the supporting motor is started to drive the supporting roller to rotate, and the supporting roller rotates to drive the upper die frame and the lower die frame to move, so that under the action of gravity and inertia, the upper die frame and the lower die frame move towards the limiting plate, the lower die frame is separated from the supporting roller connected with the supporting motor, and the lower die frame abuts against the limiting plate to be limited;

the next lower mold frame is limited when being abutted against the previous lower mold frame, so that the upper mold frame and the lower mold frame are collected together to be stood for waiting for the molding of the sand mold, and after the molding of the sand mold, the sand mold is conveyed away for the next procedure; and the lower die frame is separated from the supporting roller connected with the supporting motor after stopping running, so that the probability that the supporting roller rotates all the time to abrade the lower die frame is reduced.

Optionally, a sealing plate is detachably arranged at the bottom end of the lower die frame through a first screw, and a lower die core is detachably arranged on the upper surface of the sealing plate through a second screw;

after the lower die frame is turned over, an upper die core is detachably arranged on the lower die core through a third screw, a position avoiding pipe used for forming a pouring gate is arranged on the upper die core, and the head of the third screw is positioned in the position avoiding pipe; and the upper die frame is in threaded connection with a lifting ring in threaded connection with the lower die frame.

The lower die frame is placed on the rack, then the lower die core is placed on the rack, but in the process of placing the molding sand, the molding sand can generate impact force on the lower die core, so that the lower die core is easy to displace, and the molding sand can enter between the lower die core and the rack, so that the quality of sand mold manufacturing is reduced;

by adopting the technical scheme, the lower die core is arranged on the sealing plate, then the sealing plate is arranged on the lower die frame, and the sealing plate is placed on the rack to manufacture the lower die; after the lower die is manufactured, the first rotating plate drives the lower die frame to turn, then the second screw is screwed to separate the lower die core from the sealing plate, and then the first screw is screwed to detach the sealing plate from the lower die frame;

then, the upper mold core is placed on the lower mold core, the third screw is screwed to fixedly connect the upper mold core and the lower mold core together, and then molding sand can be placed in the upper mold frame to manufacture the upper mold, so that the moving probability of the lower mold core and the upper mold core is reduced, and meanwhile, the third screw is positioned in the position avoiding pipe, so that the adverse effect on the sand mold production when the third screw is positioned outside the position avoiding pipe is reduced, and the sand mold manufacturing quality is improved; when the lower die frame is turned, the sealing plate reduces the probability of the molding sand falling from the lower die frame, reduces the waste of the molding sand and the adverse effect on the quality of the sand die, and improves the quality of the sand die;

on placing the lower die frame with the upper die frame, twist rings and will go up die frame and lower die frame fixed connection together, when going up die frame and lower die frame simultaneously and need following the collection subassembly and transport, rings so that use lifting device transports, have improved the convenience when transporting upper die frame and lower die frame.

Optionally, the sand feeding device comprises;

the first sliding plate is arranged on the rack in a sliding manner;

the conveying cylinder is arranged on the rack and connected with the first sliding plate;

the conveying pipe is arranged on the first sliding plate and is used for conveying the molding sand;

the guide cover is arranged on the conveying pipe and is used for enabling the molding sand to be tiled;

the deflector, the deflector setting is provided with a plurality ofly and makes the molding sand tiling go up the mould frame and lower mould frame on the guide housing and interval.

By adopting the technical scheme, when the molding sand needs to be added, the conveying cylinder is started to drive the first sliding plate to move, the first sliding plate moves to drive the conveying pipe to move above the upper mold frame and the lower mold frame, the molding sand drops into the upper mold frame and the lower mold frame through the conveying pipe and the guide cover, and the guide plate is used for guiding the molding sand, so that the molding sand is tiled in the upper mold frame and the lower mold frame, the extrusion effect of the extrusion plate on the molding sand is improved, the compactness of the molding sand is improved, and the quality of the molding sand is improved;

after the molding sand adds the completion, carry the cylinder to start and drive conveyer pipe and guide housing and keep away from last framed and lower framed, consequently first rotating plate and second rotating plate can remove framed and last framed down, thereby reduced down framed with last framed when removing with the probability that the guide housing collided, consequently can shorten the distance between guide housing and lower framed and the last framed upper surface when setting up the guide housing, reduced the molding sand and dropped the probability outside framed and lower framed, the waste of molding sand has been reduced.

Optionally, the frame is provided with an extruding device for extruding the molding sand, and the extruding device comprises;

the second sliding plate is arranged on the rack in a sliding manner;

an extrusion cylinder arranged on the frame and connected with the second sliding plate

And the extrusion assembly is arranged on the second sliding plate and is used for extruding the molding sand.

Through adopting above-mentioned technical scheme, the squeeze cylinder starts to drive the second slide and removes, the second slide removes and drives the extrusion subassembly and moves to lower moulding frame and go up the moulding frame top, the extrusion subassembly starts to extrude the molding sand, the extrusion is accomplished the back, the squeeze cylinder starts to drive the extrusion subassembly and keeps away from lower moulding frame and last moulding frame, consequently first rotation board drives lower moulding frame and goes up the moulding frame and removes, thereby the probability that collides with the extrusion subassembly when having reduced lower moulding frame and last moulding frame and removing, consequently, can shorten the distance that the extrusion subassembly removed when extrudeing the molding sand when setting up the extrusion subassembly, the loss of energy has been reduced, the extrusion time to the molding sand has also been shortened, efficiency when the sand mould preparation has been improved.

Optionally, the extrusion assembly comprises;

the extrusion oil cylinder is arranged on the second sliding plate;

and the extrusion plate is arranged on the piston rod of the extrusion oil cylinder and is used for extruding the molding sand.

Through adopting above-mentioned technical scheme, extrusion cylinder starts to drive the stripper plate and removes, and the stripper plate removes and extrudees the molding sand to this realizes extrudeing the molding sand.

In a second aspect, the present application provides a casting production process, which adopts the following technical scheme:

a casting production process comprises the following process steps;

s1, manufacturing a sand mold, and producing the sand mold by using the sand mold production structure in any one of the first aspect;

s2, smelting, namely smelting the raw materials for producing the casting into solution;

s3, pouring, namely injecting the metal solution into a sand mold and gradually solidifying;

and S4, removing the die, and obtaining the casting.

By adopting the technical scheme, the upper mold frame and the lower mold frame in the sand mold are disassembled, the upper mold core and the lower mold core are taken down, then the mold is closed to obtain the casting sand mold, the raw materials are smelted into the metal solution, then the metal solution is poured into the casting sand mold, the casting sand mold is disassembled after the metal solution is solidified, and thus the casting is manufactured.

In summary, the present application includes at least one of the following beneficial technical effects:

1. clamping the lower die frame through a first clamping mechanism, and starting a pushing mechanism to drive a first rotating plate to overturn the lower die frame; the first clamping mechanism loosens the clamping of the lower mold frame, the lower mold frame is placed on the rack, and then the sand feeding device is started to add the molding sand into the upper mold frame, so that the lower mold is manufactured, the lower mold frame does not need to be turned over manually, the production time of the sand mold is shortened, and the efficiency in the production process of the sand mold is improved;

2. the upper mold frame and the lower mold frame are clamped through the starting of the second clamping mechanism, the lower mold frame is driven by the pushing mechanism to move to the collecting assembly, and therefore hoisting equipment does not need to be manually used for transportation, and the production efficiency of the sand mold is improved.

Drawings

FIG. 1 is a schematic illustration of a prior art sand mold production configuration;

FIG. 2 is a perspective view of the present application;

FIG. 3 is a schematic partial structural view of the present application, showing primarily the turning apparatus and the conveying apparatus;

FIG. 4 is an exploded view of the lower die frame, closing plate and lower die core of the present application;

FIG. 5 is an exploded view of the lower die frame, closing plate, lower die core, upper die frame and upper die core of the present application;

FIG. 6 is a schematic view of the construction of the inverting device and the conveying device of the present application;

FIG. 7 is a schematic structural view of a second clamping mechanism of the present application;

FIG. 8 is a schematic view of the construction of the collection assembly of the present application;

FIG. 9 is a schematic view of the structure of the sand feeder of the present application;

fig. 10 is a schematic view of the structure of the extrusion apparatus of the present application.

Reference numerals: 1. a frame; 11. a first placing plate; 12. a second placing plate; 13. a lower mold frame; 131. a first threaded hole; 132. a first screw; 133. inserting grooves; 134. a hoisting ring; 14. putting a mold frame; 15. closing the plate; 16. a lower mold core; 161. a second threaded hole; 162. a second screw; 17. an upper mold core; 171. a position avoiding pipe; 172. a third screw; 18. a first rotating base; 181. a rotating shaft; 19. a second rotating base; 191. a rotating rod; 2. a turning device; 21. a first rotating plate; 22. a first clamping mechanism; 23. a first cylinder; 24. a first clamping plate; 25. a clamping block; 3. a pushing mechanism; 31. a gear; 32. pushing the oil cylinder; 33. a rack; 34. a mounting seat; 4. a conveying device; 41. a second rotating plate; 411. a rotating shaft; 42. a support disc; 43. a second clamping mechanism; 44. a second cylinder; 45. a second clamping plate; 46. a guide bar; 5. a collection assembly; 51. a support roller; 52. a support motor; 53. a limiting plate; 54. a support plate; 61. a first support base; 62. a second support seat; 7. a sand feeding device; 71. a first slide plate; 72. a conveying cylinder; 73. a delivery pipe; 74. a guide housing; 75. a guide plate; 8. an extrusion device; 81. a second slide plate; 82. an extrusion cylinder; 83. an extrusion assembly; 84. extruding the oil cylinder; 85. and (5) pressing the plate.

Detailed Description

The present application is described in further detail below with reference to figures 2-10.

The embodiment of the application discloses sand mould production structure.

Referring to fig. 2, the sand mold production structure includes a frame 1, a sand feeding device 7 disposed on the frame 1 and used for conveying molding sand, a first horizontal placing plate 11 and a second placing plate 12 are fixedly mounted on the upper surface of the frame 1, a lower mold frame 13 is placed on the upper surface of the first placing plate 11, and a turnover device 2 for turning over the lower mold frame 13 is disposed on the frame 1.

Referring to fig. 2 and 3, the turnover device 2 is used for placing the lower mold frame 13 on the second placing plate 12 in a turnover manner of 180 degrees, then a worker mounts the upper mold frame 14 on the upper surface of the lower mold frame 13, the projections of the upper mold frame 14 and the lower mold frame 13 in the vertical direction are overlapped and rectangular, the heights of the upper mold frame 14 and the lower mold frame 13 are the same, the upper surface of the first placing plate 11 is located above the second placing plate 12, and the distance between the upper surfaces of the first placing plate 11 and the second placing plate 12 in the vertical direction is equal to the height of the upper mold frame 14 minus the thickness of the sealing plate 15; the upper and lower surfaces of the lower mold frame 13 and the upper mold frame 14 are provided with first threaded holes 131 at four corners, and the first threaded holes 131 penetrate through the upper and lower surfaces of the lower mold frame 13 and the upper mold frame 14.

Referring to fig. 3 and 4, the sealing plate 15 is detachably mounted on the lower surface of the lower mold frame 13 through a first screw 132, and the projections of the sealing plate 15 and the outer side wall of the lower mold frame 13 in the vertical direction are overlapped; the first screw 132 vertically penetrates through the lower surface of the sealing plate 15 and is in threaded connection with the first threaded hole 131, and meanwhile, the head of the first screw 132 is positioned in the sealing plate 15; the lower mold core 16 is detachably mounted on the upper surface of the sealing plate 15 and positioned in the lower mold frame 13 through a second screw 162, a second threaded hole 161 is formed in the lower surface of the lower mold core 16, the second screw 162 vertically penetrates through the lower surface of the sealing plate 15 and is in threaded connection with the second threaded hole 161, and meanwhile the head of the second screw 162 is positioned in the sealing plate 15.

Referring to fig. 4 and 5, two insertion grooves 133 are horizontally arranged on two opposite side walls of the lower mold frame 13 and the upper mold frame 14 at intervals, four hanging rings 134 are arranged on the upper mold frame 14, the four hanging rings 134 are respectively in threaded connection with four first threaded holes 131, and the bottom ends of the four hanging rings 134 are in threaded connection with the first threaded holes 131 on the lower mold frame 13, so that the lower mold frame 13 and the upper mold frame 14 are fixedly connected; and the lifting rings 134 are used to facilitate the transportation of the lower mold frame 13 and the upper mold frame 14.

Referring to fig. 4 and 5, after the lower mold frame 13 is placed on the second placing plate 12 in an inverted manner, the second screws 162 and the closing plate 15 are removed, the upper mold core 17 is detachably mounted on the lower mold core 16 through the third screws 172, and the upper mold core 17 and the lower mold core 16 cooperate to form a space for casting a workpiece; the upper surface of the upper mold core 17 is fixedly provided with a vertical avoiding pipe 171, the avoiding pipe 171 forms a pouring port used in pouring when a sand mold is manufactured, and the third screw 172 penetrates through the upper mold core 17 positioned in the avoiding pipe 171 and is in threaded connection with the second threaded hole 161, so that the head of the third screw 172 is positioned in the avoiding pipe 171.

Referring to fig. 2 and 3, the turnover device 2 includes a first rotating plate 21, a first clamping mechanism 22 and a pushing mechanism 3, a first rotating seat 18 and a second rotating seat 19 are fixedly installed on the upper surface of the frame 1 at intervals, the first rotating seat 18 is located between the first placing plate 11 and the second placing plate 12, and the second rotating seat 19 is located on the side of the second placing plate 12 far away from the first placing plate 11; the first rotating base 18 is hinged with a rotating shaft 181 on two opposite side walls, the second rotating base 19 is hinged with a rotating rod 191 on two opposite side walls, and the rotating shaft 181 and the rotating rod 191 are in a horizontal state and parallel in axis.

Referring to fig. 2 and 3, a conveying device 4 for conveying the upper mold frame 14 and the lower mold frame 13 is disposed on the frame 1, and the conveying device 4 includes a second rotating plate 41, a supporting plate 42, and a second clamping mechanism 43; the first rotating plate 21 and the second rotating plate 41 are both long, the length directions of the first rotating plate 21 and the second rotating plate 41 are both perpendicular to the axis of the rotating shaft 181, and two first rotating plates 21 and two second rotating plates 41 are arranged along the axis of the rotating shaft 181 at intervals.

Referring to fig. 2 and 3, one end of the two first rotating plates 21 in the length direction is fixedly installed on the rotating shaft 181, one end of the two second rotating plates 41 in the length direction is fixedly installed on the rotating rod 191, one end of the first rotating plate 21 away from the rotating shaft 181 horizontally extends to the lower mold frame 13 on the first placing plate 11, and one end of the second rotating plate 41 away from the rotating rod 191 horizontally extends to the lower mold frame 13 on the second rotating plate 41; the two lower mold frames 13 are each positioned between the two first rotating plates 21 and the two second rotating plates 41.

Referring to fig. 3 and 6, the first clamping mechanisms 22 are provided in two and are located at one ends of the two first rotating plates 21 adjacent to the lower mold frame 13, while the two first clamping mechanisms 22 are located at the side walls of the opposite sides of the two first rotating plates 21 and are used for clamping the lower mold frame 13; the first clamping mechanism 22 comprises a first oil cylinder 23, a first clamping plate 24 and clamping blocks 25, the first oil cylinder 23 is fixedly arranged on the side wall of the first rotating plate 21 close to one side of the lower die frame 13, and the first oil cylinders 23 are in a horizontal state and are arranged at intervals along the length direction of the first rotating plate 21.

Referring to fig. 3 and 6, the first clamping plate 24 is fixedly mounted on the piston rods of the two first oil cylinders 23, the clamping block 25 is fixedly mounted on the side wall of the first clamping plate 24 close to one side of the lower mold frame 13, and the clamping block 25 is provided with two insertion grooves 133 which are inserted and matched with the two insertion grooves 133 on the same side of the lower mold frame 13.

Referring to fig. 6 and 7, a rotating shaft 411 is horizontally hinged to one end of the side wall of the opposite side of the two second rotating plates 41, which is far away from the rotating rod 191, and the rotating shaft 411 is parallel to the axis of the rotating rod 191; the support plate 42 is provided with two and coaxially and fixedly installed on the opposite ends of the two rotation shafts 411.

Referring to fig. 3 and 6, the second clamping mechanism 43 is disposed on two support plates 42 and used for clamping the upper mold frame 14 and the lower mold frame 13, the second clamping mechanism 43 includes a second oil cylinder 44 and a second clamping plate 45, the second oil cylinder 44 is fixedly mounted on the side wall of the opposite side of the two support plates 42, the second oil cylinders 44 are in a horizontal state and are circumferentially arrayed around the axis of the rotating shaft 411, the second clamping plates 45 are fixedly mounted on the piston rods of the four second oil cylinders 44, and the two second clamping plates 45 abut against two opposite side walls of the upper mold frame 14 and the lower mold frame 13.

Referring to fig. 3 and 6, a guide rod 46 is fixedly mounted on a side wall of the second clamping plate 45 close to the supporting plate 42, the cross section of the guide rod 46 is square, the center line of the guide rod is coincident with the axis of the rotating shaft 411, and the guide rod 46 is slidably arranged on the supporting plate 42 and the rotating shaft 411. The section of the second clamping plate 45 is square, four clamping blocks 25 are also fixedly mounted on the side wall of the second clamping plate 45 close to one side of the lower mold frame 13, and the four clamping blocks 25 are in inserted fit with the four insertion grooves 133 on the same side of the upper mold frame 14 and the lower mold frame 13.

Referring to fig. 3 and 6, the centers of gravity of the upper and lower mold frames 14 and 13 and the centers of gravity of the support plate 42 and the second clamp plate 45 are all located on the axis of the rotating shaft 411, and the four clamp blocks 25 are circumferentially arrayed around the axis of the rotating shaft 411, so that the upper and lower mold frames 14 and 13, the support plate 42, the second clamp plate 45 and the clamp blocks 25 can be rotated to the original position by gravity in a natural state.

Referring to fig. 3 and 6, the turnover device 2 further includes a pushing mechanism 3, the pushing mechanism 3 is disposed on the frame 1 and connected to the rotating shaft 181 and the rotating rod 191, and a mounting seat 34 is fixedly mounted on the frame 1 on one side of the first placing plate 11 and the second placing plate 12; the pushing mechanism 3 comprises two gears 31, a pushing oil cylinder 32 and a rack 33, the two gears 31 are respectively connected with the rotating shaft 181 and the rotating rod 191 in a key mode, the pushing oil cylinder 32 is fixedly installed on the upper surface of the supporting seat and is in a horizontal state, and meanwhile the axis of a piston rod of the pushing oil cylinder 32 is perpendicular to the axis of the rotating rod 191.

Referring to fig. 3 and 6, a rack 33 is horizontally slidably mounted on the upper surface of the mounting seat 34, and the rack 33 is fixedly mounted on the piston rod of the push cylinder 32 and meshed with the two gears 31; the pushing cylinder 32 is actuated to drive the rack 33 to move, and the rack 33 moves to drive the rotating shaft 181 and the rotating rod 191 to rotate, thereby driving the first rotating plate 21 and the second rotating plate 41 to rotate.

Referring to fig. 2 and 3, a support plate 54 is fixedly mounted on the upper surface of the frame 1 and on the side of the second rotating plate 41 away from the first rotating plate 21, the length direction of the support plate 54 is perpendicular to the axis of the rotating rod 191, two support plates 54 are arranged at intervals along the direction parallel to the axis of the rotating rod 191, the projection of the lower mold frame 13 along the length direction of the support plate 54 is located between the two support plates 54, the upper surface of the support plate 54 is in an inclined state, and the height of the end of the support plate 54 close to the second rotating plate 41 is higher than the height of the end of the support plate 54 away from the second rotating plate 41.

Referring to fig. 3 and 8, the conveying device 4 further includes a collecting assembly 5, the collecting assembly 5 being disposed on the support plate 54 and used for placing the upper mold frame 14 and the lower mold frame 13; the collecting assembly 5 comprises a supporting roller 51, a supporting motor 52 and a limiting plate 53; the supporting rollers 51 are horizontally hinged on the side walls of the opposite sides of the two supporting plates 54, and the supporting rollers 51 are arranged in an array in a direction parallel to the upper surface of the supporting plates 54, while the upper surface of the supporting roller 51 closest to the side of the second rotating plate 41 is flush with the upper surface of the second placing plate 12.

Referring to fig. 3 and 8, the second rotating plate 41 rotates 180 degrees to drive the lower mold frame 13 to move onto the supporting rollers 51, the supporting motor 52 is fixedly installed on the supporting plate 54, the supporting motor 52 is connected with the supporting roller 51 closest to one side of the second rotating plate 41, the limiting plate 53 is fixedly installed on the upper surface of the supporting plate 54, the limiting plate 53 is located on one side of the supporting roller 51 away from the second rotating plate 41, and the lower mold frame 13 abuts against the limiting plate 53 for positioning.

Referring to fig. 3 and 8, the lower mold frame 13 moves onto the supporting rollers 51, the supporting motor 52 is started to drive the supporting rollers 51 to rotate, the supporting rollers 51 rotate to drive the lower mold frame 13 to move, then the lower mold frame 13 is separated from the supporting rollers 51 connected with the supporting motor 52, the lower mold frame 13 abuts against the limiting plate 53 under the action of gravity and inertia to be positioned, and then the next lower mold frame 13 abuts against the previous lower mold frame 13 to be positioned.

Referring to fig. 2 and 3, a first supporting seat 61 and a second supporting seat 62 are respectively and fixedly mounted on the upper surface of the rack 1, the first supporting seat 61 and the second supporting seat 62 are arranged in one-to-one correspondence with the first placing plate 11 and the second placing plate 12, two first supporting seats 61 and two second supporting seats 62 are arranged at intervals along the axis of the rotating shaft 181, and the two first supporting seats 61 and the two second supporting seats 62 are respectively located on two sides of the first placing plate 11 and the two sides of the second placing plate 12; meanwhile, the top ends of the first support seat 61 and the second support seat 62 vertically extend upwards to the upper parts of the lower mold frame 13 and the upper mold frame 14.

Referring to fig. 2 and 3, the first supporting seat 61 and the second supporting seat 62 on the same side of the first placing plate 11 are both provided with the squeezing device 8, and the other first supporting seat 61 and the other second supporting seat 62 are provided with the sand feeding device 7; the sand feeder 7 is used to feed molding sand to add the molding sand into the lower mold frame 13 and the upper mold frame 14, and the squeeze device 8 is used to squeeze the molding sand, and the sand feeder 7 and the squeeze device 8 on the first support 61 will be explained below as an example.

Referring to fig. 2 and 9, the sand feeder 7 includes a first slide plate 71, a feed cylinder 72, a feed pipe 73, a guide cover 74, and a guide plate 75.

Referring to fig. 3 and 9, the first sliding plate 71 is horizontally slidably disposed on the first supporting seat 61 and above the lower mold frame 13, and the sliding direction of the first sliding plate 71 is parallel to the axis of the rotating shaft 181; the conveying cylinder 72 is fixedly mounted on the side wall of the first supporting seat 61, a piston rod of the conveying cylinder 72 horizontally extends to the side, far away from the lower mold frame 13, of the first supporting seat 61, and the piston rod of the conveying cylinder 72 is fixedly connected with the first sliding plate 71.

Referring to fig. 3 and 9, the delivery pipe 73 is fixedly installed on the first sliding plate 71, and the delivery pipe 73 vertically penetrates downward below the first sliding plate 71, and the delivery pipe 73 is located on one side of the first supporting seat 61 close to the lower mold frame 13 and is used for delivering the molding sand; the guide cover 74 is fixedly arranged on the bottom end of the conveying pipe 73, and the central connecting line of the upper surface and the lower surface of the guide cover 74 is superposed with the axis of the conveying pipe 73.

Referring to fig. 2 and 9, the distance between the lower surface of the guide housing 74 and the upper surface of the lower mold frame 13 is H1, the distance between the lower surface of the guide housing 74 on the second support seat 62 and the upper surface of the upper mold frame 14 is H2, and H1 and H2 have the same value and are larger than zero and smaller than the grain size of the molding sand; meanwhile, the initial positions of the first sliding plate 71 and the guide cover 74 are both located at the side of the first rotating plate 21 and the second rotating plate 41 close to the first supporting seat 61, so that the probability of collision between the first sliding plate 71 and the guide cover 74 when the first rotating plate 21 and the second rotating plate 41 rotate is reduced.

Referring to fig. 9, the guide plates 75 are fixedly installed on the inner side wall of the guide housing 74, a flow space for the molding sand to pass through is reserved between the top end of the guide plate 75 and the inner top wall of the guide housing 74, the length direction of the guide plate 75 is perpendicular to the sliding direction of the first sliding plate 71, and a plurality of guide plates 75 are arranged at intervals along the sliding direction of the first sliding plate 71.

Referring to fig. 2 and 9, when the molding sand needs to be added, the conveying cylinder 72 is started to drive the first sliding plate 71 to move, the first sliding plate 71 moves to drive the conveying pipe 73 and the guide cover 74 to move right above the lower mold frame 13 and the upper mold frame 14, the molding sand enters the guide cover 74 through the conveying pipe 73, the molding sand is conveyed between two adjacent guide plates 75 through the flowing space, then the molding sand moves into the upper mold frame 14 and the lower mold frame 13, and the guide plates 75 are used for guiding the molding sand so that the molding sand is tiled in the upper mold frame 14 and the lower mold frame 13.

Referring to fig. 2 and 10, the pressing device 8 includes a second slide plate 81, a pressing cylinder 82, and a pressing assembly 83.

Referring to fig. 3 and 10, the second sliding plate 81 is slidably disposed on the first supporting seat 61 and above the lower mold frame 13, and the sliding direction of the second sliding plate 81 is parallel to the axis of the rotating shaft 181; extrusion cylinder 82 fixed mounting is on first supporting seat 61 lateral wall, and extrusion cylinder 82 piston rod level extends first supporting seat 61 and keeps away from lower die frame 13 one side, and extrusion cylinder 82 piston rod and second sliding plate 81 fixed connection simultaneously.

Referring to fig. 3 and 10, the squeeze assembly 83 is provided on the second slide plate 81, and the squeeze assembly 83 is located on the first supporting base 61 on the side close to the lower mold frame 13 and is used to squeeze the molding sand; the extrusion assembly 83 comprises an extrusion oil cylinder 84 and an extrusion plate 85, the extrusion oil cylinder 84 is fixedly arranged on the upper surface of the first supporting seat 61, and a piston rod of the extrusion oil cylinder 84 vertically penetrates out of the second sliding plate 81 downwards; the extrusion plate 85 is fixedly arranged on a piston rod of the extrusion oil cylinder 84, and the extrusion plate 85 is used for extruding the molding sand; the extrusion cylinder 84 is actuated to drive the extrusion plate 85 into the lower mold frame 13 and the upper mold frame 14, thereby extruding the molding sand.

Referring to fig. 3 and 10, the distance between the lower surface of the pressing plate 85 and the upper surface of the lower mold frame 13 is also H1, the distance between the lower surface of the pressing plate 85 positioned on the second support seat 62 and the upper surface of the upper mold frame 14 is also H2, and the initial positions of the second sliding plate 81 and the pressing plate 85 are both positioned on the sides of the first rotating plate 21 and the second rotating plate 41 close to the first support seat 61, so that the probability of collision between the second sliding plate 81 and the pressing plate 85 when the first rotating plate 21 and the second rotating plate 41 rotate is reduced.

The working principle of the embodiment of the application is as follows:

the worker mounts the lower mold core 16 to the closing plate 15 by the second screws 162, then mounts the closing plate 15 to the lower mold frame 13 by the first screws 132, places the lower mold frame 13 on the first placing plate 11 and brings the closing plate 15 into contact with the first placing plate 11; the conveying cylinder 72 is started to drive the guide cover 74 to move to the upper part of the lower mold frame 13, the molding sand sequentially passes through the conveying pipe 73 and the guide cover 74 to move into the lower mold frame 13, and after the addition is completed, the conveying cylinder 72 drives the guide cover 74 to be far away from the lower mold frame 13.

The extrusion cylinder 82 is started to drive the extrusion plate 85 to move to the upper part of the lower die frame 13, and the extrusion cylinder 84 is started to drive the extrusion plate 85 to extrude the molding sand downwards; after extrusion is completed, the extrusion cylinder 84 drives the extrusion plate 85 to move upwards, and then the extrusion cylinder 82 drives the extrusion plate 85 to be away from the lower mold frame 13, so that the molding sand adding and extrusion molding to the lower mold frame 13 are completed; the first oil cylinder 23 is started to drive the first clamping plate 24 to clamp the lower mold frame 13, the clamping block 25 is in inserted fit with the insertion groove 133, the oil cylinder 32 is pushed to be started to drive the rack 33 to move, the rack 33 moves to drive the first rotating plate 21 and the lower mold frame 13 to turn 180 degrees and move to the position above the second placing plate 12, the first oil cylinder 23 is started to release the clamping on the lower mold frame 13, and the lower mold frame 13 falls onto the second placing plate 12.

The worker detaches the second screw 162 and the closing plate 15, places the upper mold core 17 on the lower mold core 16, screws the third screw 172 to fixedly mount the upper mold core 17 and the lower mold core 16 together, places the upper mold frame 14 on the lower mold frame 13, screws the hanging ring 134 to fixedly connect the upper mold frame 14 and the lower mold frame 13 together, and continues to add molding sand into the upper mold frame 14 for extrusion compaction.

The second oil cylinder 44 is started to drive the second clamping plate 45 to clamp the upper mold frame 14 and the lower mold frame 13, the clamping block 25 is inserted into the insertion groove 133, the pushing oil cylinder 32 is started to drive the second rotating plate 41 to rotate, so that the lower mold frame 13 and the upper mold frame 14 on the second placing plate 12 are moved to the upper side of the supporting roller 51, the second oil cylinder 44 is started to drive the second clamping plate 45 to be away to release the clamping of the lower mold frame 13 and the upper mold frame 14, and the pushing oil cylinder 32 is started to drive the first rotating plate 21 and the second rotating plate 41 to rotate simultaneously, so that the lower mold frame 13 on the first rotating plate 21 is overturned to fall onto the second placing plate 12, and the lower mold frame 13 on the second rotating plate 41 falls onto the supporting roller 51.

Support motor 52 starts to drive backup roll 51 and rotates, backup roll 51 rotates and drives down framed 13 and removes, then framed 13 removes under gravity and inertial action down, last framed 13 conflicts and carries out the location on limiting plate 53 down, and then framed 13 conflicts and carries out the location on the preceding framed 13 down, with this completion of accomplishing the sand mould, need not the manual work and go to overturn framed 13 down, the time of sand mould production has been shortened, the efficiency in the sand mould production process has been improved.

The embodiment of the application discloses a casting production process.

The casting production process comprises the following process steps;

referring to fig. 3 and 4, S1, manufacturing a sand mold, and producing the sand mold by using the sand mold production structure; then the lower mold frame 13 and the upper mold frame 14 are disassembled, then the upper mold core 17 and the lower mold core 16 are taken down, and finally the mold is closed to obtain the sand mold needed in the pouring process;

s2, smelting, namely smelting the raw materials for producing the casting into metal solution;

s3, pouring, namely injecting the metal solution into a sand mold and gradually solidifying;

and S4, removing the die, and obtaining the casting.

The working principle of the embodiment of the application is as follows:

the method comprises the steps of detaching an upper mold frame 14 and a lower mold frame 13 in the sand mold, taking down an upper mold core 17 and a lower mold core 16, closing the molds to obtain a casting sand mold, smelting raw materials into a metal solution, then pouring the metal solution into the casting sand mold, standing for solidification of the metal solution, and detaching the sand mold to obtain a casting, so that the casting is manufactured.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a sand mould production structure, includes frame (1), sets up sand feeding device (7) in frame (1) and be used for carrying the molding sand, place framed (14) and lower framed (13) on frame (1), its characterized in that: the frame (1) is provided with a turnover device (2) for turning over the lower die frame (13), and the turnover device (2) comprises a turnover mechanism;

the first rotating plate (21), the said first rotating plate (21) is rotated and set up on the framework (1) through the spindle (181);

a first clamping mechanism (22), wherein the first clamping mechanism (22) is arranged on the first rotating plate (21) and is used for clamping the lower die frame (13);

and the pushing mechanism (3) is arranged on the rack (1) and is connected with the rotating shaft (181).

2. The sand mold production structure according to claim 1, wherein: the two first clamping mechanisms (22) are arranged and are positioned at two sides of the lower die frame (13), and each first clamping mechanism (22) comprises a clamping mechanism body;

a first oil cylinder (23), wherein the first oil cylinder (23) is arranged on the first rotating plate (21);

the first clamping plate (24) is arranged on a piston rod of the first oil cylinder (23) and clamps the lower die frame (13), and the lower die frame (13) is provided with an inserting groove (133);

the clamping block (25) is arranged on the first clamping plate (24) and is in inserted fit with the insertion groove (133).

3. The sand mold production structure according to claim 1, wherein: the machine frame (1) is provided with a conveying device (4) for conveying an upper die frame (14) and a lower die frame (13), and the conveying device (4) comprises;

the second rotating plate (41), the second rotating plate (41) is rotatably arranged on the rack (1) through a rotating rod (191), and the rotating rod (191) is connected with the pushing mechanism (3);

the supporting disc (42) is rotatably arranged on the second rotating plate (41) through a rotating shaft (411) and is kept stable under the action of gravity;

a second clamping mechanism (43), wherein the second clamping mechanism (43) is arranged on the supporting plate (42) and is used for clamping the upper mold frame (14) and the lower mold frame (13);

the collecting assembly (5) is arranged on the rack (1), is positioned on one side, away from the first rotating plate (21), of the second rotating plate (41) and is used for placing the upper die frame (14) and the lower die frame (13).

4. A sand mould production structure according to claim 3, characterised in that: the pushing mechanism (3) comprises;

the two gears (31), the two gears (31) are respectively arranged on the rotating shaft (181) and the rotating rod (191);

the pushing oil cylinder (32), the pushing oil cylinder (32) is arranged on the rack (1);

the rack (33) is arranged on the rack (1) in a sliding mode, is connected with a piston rod of the pushing oil cylinder (32) and is meshed with the two gears (31).

5. A sand mould production structure according to claim 3, characterised in that: the collection assembly (5) comprises;

the supporting rollers (51) are rotatably arranged on the frame (1), a plurality of supporting rollers (51) are obliquely arranged at intervals and used for supporting the upper die frame (14) and the lower die frame (13), and the height of the supporting roller (51) close to one side of the second rotating plate (41) is higher than that of the supporting roller (51) far away from one side of the second rotating plate (41);

the supporting motor (52) is arranged on the rack (1) and is connected with the supporting roller (51) close to one side of the second rotating plate (41);

the limiting plate (53), limiting plate (53) set up on frame (1) and be used for going on the location to last framed (14) and lower framed (13).

6. The sand mold production structure according to claim 1, wherein: a sealing plate (15) is detachably arranged at the bottom end of the lower die frame (13) through a first screw (132), and a lower die core (16) is detachably arranged on the upper surface of the sealing plate (15) through a second screw (162);

after the lower die frame (13) is turned over, an upper die core (17) is detachably arranged on the lower die core (16) through a third screw (172), a position avoiding pipe (171) used for forming a pouring gate is arranged on the upper die core (17), and the head of the third screw (172) is positioned in the position avoiding pipe (171); the upper die frame (14) is in threaded connection with a lifting ring (134) in threaded connection with the lower die frame (13).

7. The sand mold production structure according to claim 1, wherein: the sand feeding device (7) comprises;

the first sliding plate (71), the first sliding plate (71) is arranged on the frame (1) in a sliding manner;

the conveying cylinder (72) is arranged on the rack (1) and connected with the first sliding plate (71);

a delivery pipe (73), the delivery pipe (73) being provided on the first slide plate (71) and used for delivering the molding sand;

a guide cover (74), the guide cover (74) being provided on the delivery pipe (73) and used for spreading the molding sand;

and the guide plates (75) are arranged on the guide cover (74) at intervals, and the guide plates (75) enable the molding sand to be tiled into the upper mold frame (14) and the lower mold frame (13).

8. The sand mold production structure according to claim 7, wherein: the molding sand extrusion machine is characterized in that an extrusion device (8) for extruding molding sand is arranged on the machine frame (1), and the extrusion device (8) comprises;

the second sliding plate (81), the second sliding plate (81) is arranged on the frame (1) in a sliding manner;

an extrusion cylinder (82), the extrusion cylinder (82) is arranged on the frame (1) and is connected with the second sliding plate (81)

And the squeezing assembly (83) is arranged on the second sliding plate (81) and is used for squeezing the molding sand.

9. The sand mold production structure according to claim 8, wherein: the pressing assembly (83) comprises;

the extrusion oil cylinder (84), the extrusion oil cylinder (84) is arranged on the second sliding plate (81);

the sand-molding machine comprises a squeezing plate (85), wherein the squeezing plate (85) is arranged on a piston rod of a squeezing oil cylinder (84) and is used for squeezing molding sand.

10. A casting production process is characterized in that: comprises the following process steps;

s1, manufacturing a sand mould, and producing the sand mould by using the sand mould production structure as claimed in any one of claims 1 to 9;

s2, smelting, namely smelting the raw materials for producing the casting into solution;

s3, pouring, namely injecting the metal solution into a sand mold and gradually solidifying;

and S4, removing the die, and obtaining the casting.

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